Methods for chemical analysis of fire smelting nickel substrate material—Part 9:Determination of carbon and sulfur contents—Infrared absorption method after high frequency combustion
Methods for chemical analysis of laterite nickel ores—Part 16:Determination of carbon and sulfur content—High frequency combustion with infrared absorption spectrometry
Methods for chemical analysis of copper magnetite—Part 1:Determination of copper content—2,2-biquinoly spectrophotometric method and flame atomic absorption spectrometric method
Methods for chemical analysis of fire smelting nickel substrate material—Part 2:Determination of silicon content—Molybdosilicate blue spectrophotometric method and perchloric acid dehydration gravimetric method